阳离子型聚丙烯酰胺絮凝剂在污水处理方面发挥的作用越来越大，阳离子聚丙烯酰胺往往通过曼尼奇反应以两步法获得。
Cationic polyacrylamide (CPAM) flocculants, which are applied more and more widely in wastewater treatment, has been obtained usually by the Mannich reaction in a two-step way.
论述了两步法合成环氧树脂的反应动力学。
The dynamics of two-step epoxy resin synthesis were discussed.
以苯酚为原料，复合金属离子为催化剂，研究用气相氧化合成苯醌，用铁粉还原苯醌制对苯二酚的两步法工艺，考察了氧化过程中的工艺条件对反应的影响。
The two-step process involving gas oxidation of phenol to benzoquinone with complex metal ions catalysts and reduction of benzoquinone to hydroquinone with iron powder was studied.
综述了乙酸松油酯的合成研究现状，讨论了一步法和两步法合成工艺及相应的反应机理。
The present situation of terpinyl acetate synthesis has been reviewed. One-step and two-steps process for the synthesis of terpinyl acetate and relevant reaction mechanism are discussed.
在微波反应器中以酸酯化-碱酯交换两步法制备生物柴油。
In a microwave reactor, the biological diesel oil is prepared from an acid esterification-alkali ester exchange two-step method.
在微波反应器中以酸酯化-碱酯交换两步法制备生物柴油。
In a microwave reactor, the biological diesel oil is prepared from an acid esterification-alkali ester exchange two-step method.
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